From 4ff296bf0ba9d1c2685392085f47016d05996696 Mon Sep 17 00:00:00 2001
From: Le Juez Victor <90587919+Bigfoot71@users.noreply.github.com>
Date: Sat, 8 Nov 2025 11:28:15 +0100
Subject: [PATCH] fix clipping issue (#5342)

---
 src/external/rlsw.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/external/rlsw.h b/src/external/rlsw.h
index 15ab89d4e..db5a8189d 100644
--- a/src/external/rlsw.h
+++ b/src/external/rlsw.h
@@ -2118,12 +2118,12 @@ static inline int sw_clip_##name(
 // Frustum cliping functions
 //-------------------------------------------------------------------------------------------
 #define IS_INSIDE_PLANE_W(h) ((h)[3] >= SW_CLIP_EPSILON)
-#define IS_INSIDE_PLANE_X_POS(h) ((h)[0] <= (h)[3])
-#define IS_INSIDE_PLANE_X_NEG(h) (-(h)[0] <= (h)[3])
-#define IS_INSIDE_PLANE_Y_POS(h) ((h)[1] <= (h)[3])
-#define IS_INSIDE_PLANE_Y_NEG(h) (-(h)[1] <= (h)[3])
-#define IS_INSIDE_PLANE_Z_POS(h) ((h)[2] <= (h)[3])
-#define IS_INSIDE_PLANE_Z_NEG(h) (-(h)[2] <= (h)[3])
+#define IS_INSIDE_PLANE_X_POS(h) ( (h)[0] <  (h)[3])        // Exclusive for +X
+#define IS_INSIDE_PLANE_X_NEG(h) (-(h)[0] <  (h)[3])        // Exclusive for -X
+#define IS_INSIDE_PLANE_Y_POS(h) ( (h)[1] <  (h)[3])        // Exclusive for +Y
+#define IS_INSIDE_PLANE_Y_NEG(h) (-(h)[1] <  (h)[3])        // Exclusive for -Y
+#define IS_INSIDE_PLANE_Z_POS(h) ( (h)[2] <= (h)[3])        // Inclusive for +Z
+#define IS_INSIDE_PLANE_Z_NEG(h) (-(h)[2] <= (h)[3])        // Inclusive for -Z
 
 #define COMPUTE_T_PLANE_W(hPrev, hCurr) ((SW_CLIP_EPSILON - (hPrev)[3])/((hCurr)[3] - (hPrev)[3]))
 #define COMPUTE_T_PLANE_X_POS(hPrev, hCurr) (((hPrev)[3] - (hPrev)[0])/(((hPrev)[3] - (hPrev)[0]) - ((hCurr)[3] - (hCurr)[0])))